- Born 28 February 1934, Austin, TX
- Inaugural Address delivered at Washington, DC, 16 March 1978:
- "Dental Research in the American University—Two Problems"
- (J Dent Res 58(C):1200-1202, 1979)
- Professor, University of Pennsylvania School of Dental Medicine, Philadelphia,1970-1991
Chairman, University of Pennsylvania School of Dental Medicine, Department of Microbiology, Philadelphia, 1972-1985
Director, Periodontal Microbiology Laboratory, University of Pennsylvania 1980-1991
Associate Dean for Academic Affairs, University of Pennsylvania, 1984-1991
Professor Emeritus of Microbiology, University of Pennsylvania School of Dental Medicine 1991
Professor, Temple University, Philadelphia, Pa., 1997-June 2010